Home / 851,656.80-1,277,485.20-402,229.92

Finding the Fourth Proportional to 851,656.80, 1,277,485.20 and 402,229.92

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Solution

The fourth proportional to 851,656.80, 1,277,485.20 and 402,229.92 is: 603,344.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,656.80 : 1,277,485.20 = 402,229.92 : x
  2. Step 2: Convert to fraction form
    851,656.80/1,277,485.20 = 402,229.92/x
  3. Step 3: Cross multiply
    851,656.80x = 1,277,485.20 × 402,229.92
  4. Step 4: Simplify right side
    851,656.80x = 513,842,769,797.18
  5. Step 5: Solve for x
    x = 513,842,769,797.18/851,656.80
  6. Step 6: Final answer
    x = 603,344.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.